Due to increasing regulations regarding new diesel vehicles particulate matteremissions the new Scania truck, Scania Euro 6, has been equipped with a particulatefilter. This component effectively stores the particles in the exhaust gas but must becleaned in order to prevent itself from clogging. The filter is cleaned through aprocess named regeneration which is a thermodynamic process in which thetemperature of the filter is raised through fuel supplied to the exhaust gas.The purpose of this thesis is to contribute to the development of improved controlstrategies of the temperature during the regeneration process through thedevelopment of model-based controllers. These controllers are designed in order tohave good performance in stationary as well as automatic regeneration.In order to develop these model-based controllers a model of the system isconstructed. The model is described as a linear thermodynamic grey-box model withflow varying parameters, showing good results in validation.The model provides a simulation environment during the controller design, which isfocused around the development of linear regulators with the exhaust gas mass flowas a scheduling variable whose size determines controllers? mode of operation.

Social work is a social phenomenon, existing in most societies, that has given rise to a multitude of special organizations and professions. For that reason social work is dealing with a complex identity. The purpose of this study is to illustrate how social workers and the scientific discourse interpret the concept of social work. In addition to that the study intends to show similarities and differencies. The research process containes two studies, one based on qualitative interviews with five social workers and the other consisting a surway of academic litterature.

Problem-definition: How companies work with social media to strengthen their brand equity and what other purposes might lay behind this usage.Purpose: How Volkswagen Sweden use social media in order to strengthen their brand equity.Method: Qualitative case- study of Volkswagen Sweden where a number of respondents will be interviewed with the help of a semi structured interview guide.Theories: A number of theories in the field of brand equity and communication theory will be used in this paper, some of these theories are, Post-model, Social technographics ladder, brand equity and word of mouth.Empiric: A semi-structured interview guide will be shaped from theory and answered through interviews with people who have knowledge within the field.Conclusions: Extracted from the results the research members has identified a number of important factors that business should consider when they work with social media or planning to. They have also answered how business can strengthen their brand equity with social media..

AbstractIn urban societies people spend more and more time indoors, which put great demands on the indoor environment. If the ventilation is to manage the removal of unwanted substances in the indoor air, a good mixing of the air is required. The question arises that, whether the buoyancy forces will counteract a good mixing of the indoor air or not?This report aims to clear up the difficulties whether you need to consider the buoyancy forces or not, when adjusting a ventilation unit. For studying the indoor mixing of the air a two dimensional model is constructed in COMSOL Multiphysics.

The power system modelled in this thesis work has been developed for simulationwhen e.g. the production in some part of the power system is changed. The powersystem has been modelled according to the swing mass of the system, the frequencydependency of the load and the turbine governor. The model determines the systemfrequency, the period of regulation and the power exchange between the differentsubsystems in the Nordic synchronized system.In this model the system frequency is assumed to be the same in all different parts ofthe power system and the voltage conditions in the power system are neglected. Forthat reason power swings does not occur between different subsystems in the powersystem, which usually occur as a result of the swinging connection between thetransmissions line.

This study is about an ongoing project in the northern parts of Sweden. Quattro Helix is used as a model for the interaction between four institutional members of the society, in purpose of challenging existing social structures and achieveing community development. The aim is to increase the knowledge about Quattro Helix-model as an approaching method to face the problems in the society through cooperation between Civil society, state, academy and industry. Interviews with eight project members were used as the data-collecting method to capture the perceptions about the project constellations. Information was gathered from two representatives from each of the four actors.

The purpose of this study is to find, understand and discuss the experiences of former employees at SAAB, and present how this can be understood according to my core theoretical concepts, which are participation and identity. The questions asked in the study are based on how the labor is described, characterized and what comes forth as valuable, which is compared to absence of labor work.First, labor is described in an historical and social context, and at the same time related to the core theoretical concept. Second, the methodology chapter is presented, which mainly consists of 11 observations and 10 interviews. Third, the chapter regarding former theory leads to an analysis model, which is used on the empirical material of the study.The result shows that labor work at SAAB primarily is described as important for socializing, security and the possibility to be independent. The tasks at SAAB are described as backbreaking and monotonous, while the lack of labor work influences the physical and mental wellbeing.

A well, situated on Listerlandet in the western part of Blekinge in Sweden, has a very high content of nitrate. Water with a too high content of nitrate is hazardous to human health, in particular to small children. The area surrounding the well is mostly drained agricultural land with some larger farms for chicken and mink. The well takes its water from the bedrock and is deeper than most other wells affected by nitrate. The bedrock in the area is dominated by limestone with a relatively high flow of water.This thesis was performed in order to find the source of the nitrate.

Numerous studies have showed that Swedish municipalities are responsible for several of the activities that concern children and their rights, e.g. school and health care. Furthermore, the Convention of the Rights of the Child is an international agreement that Sweden has signed and ratified which also implies the obligations that Swedish municipalities have. The purpose of this study is to investigate and compare, from a social justice perspective, how children?s rights are being emphasized and how children?s opinions are being taken into consideration at the municipality level in Sweden.

The aim of this thesis is to investigate how the literary site Vulkan.se affects the conditions for publishing, distribution, incorporation in value systems and feedback in the literary process, as it appears in Lars Furuland?s model of this process. The purpose is also to propose an updated version of the model. This is achieved through a qualitative testing of Furuland?s theory.

I have with this thesis sought to understand how chick lit could be useful in the classroom in the teaching of Swedish B-course in high school. Based on the model of critical literacy I am arguing that this genre would help to meet the objectives of the policy documents which, among other things, are to critically examine and analyze various types of texts.I have found that some of these texts could be used for analyzing and critically examine the ideological dimensions of texts and cultural heritage by the model of critical literacy, and also as a counterweight to the more traditional teaching of the canonical literature as a literary historical stuff that students should learn. I have also wanted to create a basis for discussions about literature in the classroom based on the chick lit genre. To do this I have, based on three themes and questions from the model of critical literacy, tried to focus on issues that might emerge from the ideological analysis and critical review. The model aims to deconstruct norms of society, and in the work of chick lit, I wanted to show how you could deconstruct norms around gender..

The cost of capital for traded companies is basically assessed on information from thefinancial market. Small and non-traded companies are lack of this necessary financialmarket information in order to determine an appropriate equity risk premium and tocompute the cost of capital.In the absence of financial information necessary for an external investor, it is difficult toevaluate a non-traded company with the Capital Asset Pricing model (CAPM), which isbased on the financial market information. It measures only the systematic risk, which isthe contribution of one share to the market risk of a portfolio. It is therefore important tofind models that reflect the small and non-traded companies? real business value and theirunique characteristics.

The aim of this thesis is to develop a new business model for district heating and cooling firms which can contribute to a stabilization of the Swedish national energy system. The business model is developed for a district heating and cooling firm and is exemplified with Fortum Heat. The theoretical investigation around the topic creates a rigid base for following qualitative empirical studies. Osterwalder?s canvas for business model generation is used together with a Casual Loop Diagram to identify a number of business opportunities which stabilizes the national energy system.

In this essay I will look at the independence of the Swedish municipalities. By looking at articles for the biggest journal in Sweden on this subject Kommun aktuellt I will look at the discussion for the years of 1978 and 1998 to see if one can draw some parallels in the debate and see if some subjects are always returning in the agenda for the independence. The autonomy of the Swedish municipalities is a very important part of the Swedish welfare model. The municipalities handles for example both the primary schools and the social welfare services. Both these institutions are money draining and the municipals right by law to claim local tax does far from all the time cover its expenses.

The aim of this thesis is to create an understanding of the incentives for forest companies to invest in reducing carbon dioxide emissions from deforestation and forest degradation, which is termed REDD. The Brazilian Amazonas was chosen as the base for the investment case. Brazil has the largest area of rainforest in the world, and also the biggest problem with deforestation. The Amazon region of Brazil comprises rainforest which is largely intact and unexploited. Accordingly, there is significant potential scope for prospective investments in a REDD-project, and so have a noteworthy impact in preventing deforestation.The research approach used the United Nation?s Clean Development Mechanism concept was used as a framework for ascertaining the investment costs in potential REDD-projects.